Headphone Amplifier Kit: The Novo Headphone Amplifier in Kit Form

Few kits are this good!
Build your own kit version of the
group test winning Graham Slee Novo Headphone Amplifier which was
awarded 5 stars in January 2009's What Hi-Fi Magazine and group test
winner in April 2009 beating rivals: the Creek OBH-21SE, Lehmann
Rhinelander and Pro-ject Headbox SEII.
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Referring to the ready made Novo, What Hi-Fi April 2009 said...
"The Novo is an involving and addictive listen"
The
www.diy-audio-kits.com Novo
headphone amplifier is identical in every respect to the
commercial Graham
Slee Novo version apart from the case graphics.
Options
Complete Kit: £120.00 + shipping + VAT
PCB Assembly + Case Kit
without power supply: £112.00 + shipping + VAT
PCB Assembly Kit: £76.00 + shipping + VAT
All above kits supplied with Handbook
VAT
not charged outside EEC (EU)
Please read "please note" below (click
here) prior to purchase of PCB Assembly + Case Kit or Complete Kit
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A "Flexible Headphone Amp Kit"
The Novo Headphone Amplifier Kit is available in 3 options:
1... A Complete Kit: PCB Assembly Kit; Case Kit and Basic SM-PS Power
Supply - the 3 packs featured above complete with the Handbook
2... PCB Assembly and Case Kits - the first two packs featured above
complete with the Handbook
3... PCB Assembly Kit only - the first pack featured above complete with
the Handbook
Most people will choose the convenience of being able to construct an
identical (apart from panel graphics) copy of the Graham Slee Projects
Novo Headphone Amplifier and go for the Complete Kit.
The power supply expert may well choose option 2 - the finished kit will
then take on the characteristic of the power supply.
Option 3 is the ideal choice for the highly experienced constructor
who's good at making his own enclosures - the connectors, controls and the
grounding point will need to be extended off the board.
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Novo Headphone Amplifier Kit Handbook
A
20 page comprehensive handbook is supplied with the Complete kit and PCB
Assembly kit options.
A concise "How it Works" section explains in plain universal engineering
language exactly how the circuit works.
A fold-out circuit diagram at the
rear of the book makes the explanation easy to follow,
and for budding analogue designers it's excellent educational material too!
With the assistance of the fold-out large scale colour photograph the
PCB assembly instructions are easy to follow.
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Novo Headphone Amplifier
Specification
(Measured into 32 Ohm load except where stated)
Rated Output: 150mW RMS (40mW RMS into 600 Ohms)
Distortion (THD plus noise)
At rated (max.) output: 0.03%
At volume control mid-point: 0.01%
Input Impedance: greater than 38 kilo Ohms
Recommended input range: 200mV - 1V RMS (2.8V p-p)
Frequency Response:
At maximum output: 20 Hz - 70k Hz (-3dB points)
At volume control mid-point: 20 Hz - 50k Hz (-3dB points)
Channel Balance: 0.5dB typical
Hum & Noise:
"A-curve" weighted: -90dB
CCIR quasi-peak 20Hz-20kHz: -84dB
Stereo Crosstalk: -51dB
Size (in enclosure): L. 10.5 W. 10.5 H. 5 (cm) approx. excluding
controls and connectors
Warning: Headphones can cause hearing damage if operated too loud!
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Please Note: The case extrusions nearly
always have a slight curvature due to the cooling metal emerging from
the extrusion die. Production units are just the same. Please do not
attempt straighten the extrusions - they will fit together OK and look
right when fully assembled. An attempt to straighten them almost
invariably will lead to disaster and be revealed in stress marks in the
anodic finish. We can supply replacement extrusions at a cost.
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